Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorldHint=false, so the safety bar is low. The description still adds real value beyond them: the tool performs no action in Tidio itself (it 'opens nothing by itself') and the actual work requires separate browser tools. The 'checked 17 Oct 2026' date and API-plan aside are extraneous but do not mislead.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The operative facts (returns steps, opens nothing, then use browser tools) are front-loaded and clear, but the trailing sentence about Tidio's REST API, OpenAPI coverage, plan tiers and official MCP servers is tangential justification that most agents do not need in order to invoke the tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no parameters and no output schema, the description carries the burden of explaining what comes back, and it does state that the return is a step-by-step procedure with screens, buttons and fields. What remains unstated is the format/length of that output and whether steps are Tidio-version dependent, which is a minor gap for a zero-argument guide tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool takes zero parameters, so the baseline is 4. There is nothing for the description to disambiguate, and it correctly implies no input is needed beyond being in the user's Tidio account.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states the resource ('tickets in the user's own Tidio account') and then corrects the likely misreading of the name: it returns step-by-step instructions (screens, buttons, fields) rather than ticket data, and 'opens nothing by itself.' That is a specific and distinguishing purpose, though the opening sentence momentarily implies a data-retrieval tool.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives explicit next-step routing: use this to get the procedure, then execute it with the cotlet_browser_* tools in the Tidio Cloud Browser. It also explains why the official REST API and MCP servers are not an option (Plus/Premium plan limits). It stops short of naming when to prefer tidio_read_conversation_history or cotlet_app_guide instead.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.